Corn-planter



' 2 Sheets-Sheet 1.

(No Model.)

B. NUNAMAGKER.

CORN PLANTER.

Patented Oct. 21, 1884.

l/VVE/VTOI? @MQW afuey V (No Model.) 2 Sheets-Sheet 2. B. NUNAMAOKER.

y ,GORNPLANTBR. No. 307,063. Patented Oct. 21, 1884.

l WWW? W .dttorney Uni'rnn STATES PATENT @rrrcn.

BY NUNAMACKER, or on soro, ASSIGNOR To JOHN R. THOMSON, or

EARLHAM, IOWA.

- CORN-PLANTER.

EECIE'ICATIQN forming part of Letters Patent No. 307,063, dated October 21, 1884:.

Application filed July .21, 18S-l. (X0 model.)

To aZZ whom it may concern.-

Be it known that I, BY NUNAMACKER, a citizen of the United States, residing at De Soto, in the county of Dallas and State of Iowa, have invented certain new and useful Improvements in Corn-Planters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as'will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain improvements in corn-planters, especially of the seeddropping mechanism which is operated by springs so that only the amount of seed held by the cups will be dropped at each reciprocation of the sliding valve-bar.

The particular construction and arrange nient of the various parts I will now proceed to describe, reference being had to the acc01npanying drawings, in which Figure 1 is a top plan view; Fig. 2, a side elevation with one of the wheels removed and portion of the side bar broken away; Fig. 3, a detail showing an enlarged plan view of the seed-drop ing mechanism.

Itei'crring to said drawings, similar letters the gear-wheel. d on the shaft E, and by mean of which said shaft E is rotated.

e is a wheel on the shaft, E, with which the check-row device can be connected, and it is provided with two pins, 0, on its side and directly opposite each other. These pins engage with the spring-marker F, secured to the side of the center bar, a, the wheel 0 being so arranged that one of the pins 0 strikes the end of the marker F at each hillf-lTCVOlll-,

tion of the driving-wheels and causes it to mark the hill just as the seed is dropped.

G is a cam-wheel.

H is a bent lever pivoted to the bar f, and having on its rear end a friction-wheel, g, which engages with the groove in the cam wheel and operates the lever. Said lever H is fulerumed in the slot or bearing h in the bar it, and is connected in any suitablemanner with the sliding compression-block I on the frame B and operates said compressionbloclq as hereinafter described.

K is the sliding valve-bar, having on either end the ordinary seed-cups, and working in valves in the hoppers i. r

k are suitable springs surrounding the sliding bar K, and, as said springs are alternately compressed and released, operate said sliding valve-bar.

Z are pins on the valve-bar, against which the inner ends of the springs bear, their outer ends bearing against the seed-hoppers.

The compression-block slides on the frame B and carries the slotted sleeves L, surrounding the valvebar, and the wedgeshaped tappets at, which alternately release the springs I.- from the spring-catches M as the compression-block is reciprocated.

m are detents on the slide-bar, with which the spring-catches engage and hold or lock the springs after they are compressed.

O are the shoes or runners, provided with additional flanges 0.

The operation of my machine is as follows:

it, in combination with the eoxnpressionblocl: slide-bar K, provided with the pins Z, detents 10 I, provided with the slotted sleeves Land tapin, and springs is, substantially as and for the pets m, the spring-catches M, and lever H, all purpose shown and described. arranged and operating substantially as shown In testimony whereof I affix my signature in and described. presence of two Witnesses.

2. In a corn-planter, the cam-wheel G, bent BY NUNAMAOKER. lever H, Compression-block I, provided with \Vitnesses: the slotted sleeves L and tappets m, and the J. R. TnoMsoN, spring-catches M, in combination with the J. A. LATRD. 

